7 Maths 5 Line and angles part 2
Types of Angles
Supplementary angle
Two angles are supplementary if they add up to . Supplementary angles do not have to be congruent or next to each other.
Supplementary_angles.png
Practice questions: http://www.ck12.org/book/CK-12-Basic-Geometry-Concepts/r9/section/1.8/
Adjacent Angles and linear Pair
Two angles are adjacent if they have the same vertex, share a side, and do not overlap angle PSQ and angle QSR are adjacent.
A linear pair is two angles that are adjacent and whose non-common sides form a straight line. If two angles are a linear pair, then they are supplementary (add up to 180 deg) angle PSQ and angle QSR are a linear pair.